created by Jashir....

1. CELL PHONE CLONING
JASHIR C.K
S7 CSE
Rollno:28

2. INDEX
• INTRODUCTION
• HISTORY
• GSM
• CDMA
• IMPORTANT TERMS
• HOW IS A PHONE CLONED?
• METHODS TO DETECT CLONED PHONES
• IMPACT OF CLONING
• HOW TO PREVENT CLONING?
• CONCLUSION

3. INTRODUCTION
CELL PHONE CLONING:
– copying the identity of one to another
– For making fraudulent calls
– security data transferred
– Other cell phone become exact replica of original

4. INTRODUCTION
– Calls can be made from both
– Original is billed
– One get huge bill, possibility of cloning
– No way the subscriber can detect
– Taking programmed information
– Service provider has no way to differentiate

5. WHEN DID CELL CLONING
START?
• In telecom market since 1990’s-mostly CDMA
• Started with Motorola “bag” phones.
• Motorola brick●
classic, model 800,ultra classic

6. GSM
– Global System for Mobile Communications.
– A digital cellular phone technology based on
TDMA
– Europe, other part of world
– Use SIM contain user account information

7. GSM
– Immediately programmed after plugging in the SIM
card
– Numerous handsets and service providers available in
the market
– They comes with cheaper call rate, free message
facility
– Airtel,vodafone

8. CDMA
–
Code Division Multiple Access.
–
Newer technology used in USA,Canada,Australia
–
Method for transmitting simultaneous signals over a shared portion of the
spectrum.
– SIM card
No
–
Call cost cheaper
–
Call quality better
–
Reliance,tata indicom

9. GSM vs. CDMA
• Both handsets are prone to cloning
• it is easier to clone a CDMA
handset over a GSM one
• Though cloning a GSM cell phone
is not impossible

10. IMPORTANT TERMS
• ESN, which stands for
Electronic Serial Number.
– It is same as the IMEI but is used in CDMA handsets
– loaded when the phone number is manufactured
– Can’t be change by user or subscriber
– If this is known, easily cloned

11. IMPORTANT TERMS
• MIN stands for Mobile Identification Number,
– which is the same as the SIM of GSM, can’t be replaced
– Min chip is embedded in CDMA handset

12. HOW IS A PHONE CLONED?
• ESN/MIN pair discovered via
●
Sniffing the cellular
●
Trashing cellular companies
●
Hacking cellular companies

13. HOW IS A PHONE CLONED?
• Each phone has MIN/ESN for identify the phone
• While placing a call, phone transmit both MSN/ESN
to n/w

15. HOW IS A PHONE CLONED?
• Cellular thieves capture MSN/ESN
●
cell phone ESN reader
●
digital data interpreters (DDI)
– Specially manufactured to intercept ESN/MIN pair

16. HOW IS A PHONE CLONED?
• MSN/ESN can be cloned
●
electronic scanning device
• Cloned one is ready

17. METHODS TO DETECT CLONED PHONES ON NETWORK
• Duplicate detection
• Velocity trap
• Radio Frequency
• Usage profiling
• Call counting
• PIN codes

18. METHODS TO DETECT CLONED
PHONES ON NETWORK
• Duplicate detection
– Same phone at several place at same time
– Shutting down all of them
– Real customer will contact
– Cloned user switch to another clone

19. Duplicate detection

20. METHODS TO DETECT CLONED
PHONES
• Velocity trap
– Mobile moving at impossible speeds
– Example(Idk (5min)Trv)
– Must be two phone with same identity on n/w

21. METHODS TO DETECT CLONED
PHONES
• RF (Radio Frequency)
– Even Nominally identical radio equipment has
distinguishing fingerprint,
– n/w s/w stores and compares fingerprints of all phones that
it sees
– This way, it will spot the clones with the same identity but
different fingerprints.

22. METHODS TO DETECT CLONED
PHONES
• Usage profiling
– Keep customer phone usage profile
– Discrepancies noticed ,customer is contacted
– Example(local call -) foreign )
– Indicates a possible clone

23. METHODS TO DETECT CLONED
PHONES
• Call counting
– Phone and n/w keep track of call made
– If they differ from usually allowed one ,service
denied

24. METHODS TO DETECT CLONED
PHONES
• PIN codes
– to placing a call, the caller unlocks the phone by
PIN
– After the call completed, the user locks
– Operators may share PIN information to enable
safer roaming

25. IMPACT OF CLONING
• Loss of revenue
• CTIA estimates that financial losses
– b/w $600million to $800 million in US

26. IMPACT OF CLONING
• Illegal activities
– This phenomenon is especially prevalent in drug crimes

27. HOW TO PREVENT CLONING?
• Uniquely identifies a mobile unit within a wireless
carrier's network.
• MINs and ESNs can be checked electronically to help
prevent fraud.
• Service providers have adopted certain measures to
prevent fraud, includes
– Encryption,blocking,blacklisting,user verification, traffic analysis

28. HOW TO PREVENT CLONING?
• User verification using PIN is one of the customer
verification method
• Check that all mobile devices are covered by a
corporate security policy

29. CONCLUSION
• Presently the cellular phone industry relies on
common law
– fraud and theft and in-house counter measures
to address cellular phone fraud.
• Mobile Cloning Is in initial stages in India
– Preventive step taken by govt & n/w provider

30. CONCLUSION
• Existing cellular systems have a number of potential
weaknesses
• It is crucial that businesses and staff take mobile
phone security seriously.

31. REFERENCE
• IEEE journal for mobile
communication
• www.google.com
• wikipedia.org
• www.1000project.org
• www.seminaronly.com

32. QUESTIONS???

33. THANK YOU